Finding the Fourth Proportional to 12,380.76, 17,084.34 and 7,075.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,380.76 : 17,084.34 = 7,075.56 : x
2. Step 2: Convert to fraction form
   12,380.76/17,084.34 = 7,075.56/x
3. Step 3: Cross multiply
   12,380.76x = 17,084.34 × 7,075.56
4. Step 4: Simplify right side
   12,380.76x = 120,881,272.73
5. Step 5: Solve for x
   x = 120,881,272.73/12,380.76
6. Step 6: Final answer
   x = 9,763.64